Diagnostic Aids

2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Diagnostic Aids

Scan tool can be used to control suspected cylinder (cylinder balance test). DTC will set when there is a mechanical failure that will cause low cylinder compression in more than one cylinder, fuel leak at high pressure fuel injection lines or nozzle, or a stuck closed fuel injector nozzle.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.